Before you install a new transmission pan gasket, do you wet (or wipe) the pan gasket with transmission fluid?

When I change engine oil filter, I wipe the new o-ring for the filter case cap with engine oil.

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1992 300D 2.5 turbo diesel. 319 k miles.
124.128 chassis, 602.962 engine, 722.418 tranny.

Never have thus far.

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Phil

Prior cars:
1971 250
1983 380SEL
1986 190E2.3
1987 300TD
1994 SL500
2001 E320 4Matic
2003 SL500

I do, I think it helps the gasket to seat properly. I haven't read anywhere that you should do this, it just seems like a good idea. If anyone is aware of a reason not to, please tell us about it.

J. M. van Swaay

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1994 E320 Wagon, 230,000 miles
1995 E320 Sedan, 106,000 miles
1994 E500 Sedan, 79,000 miles

I just did my second one and did not wet the gasket. No issues here.

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1981 300TD
2005 C55
2004 E500
1999 ML430
1992 400E
1998 C43
2001 SL500
1988 300SEL
1986 190E 16V
1991 190E 2.6

Never

the surface of the gasket should be dry, the surface of the transmission should be dry.

wetting the gasket could make you think theres a leak and will be hard to tell if there is or not. I clean the surface of the pan in the parts washer and brakleen the transmission then blow it dry, wipe again with a clean rag and blow it clean again.

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99 Jetta Mk3
07 Jetta Mk5
89 300E W124
10 E 350 W212
08 C300 W204
Benz's aren't mine